Adopt
Vitest is a testing framework powered by Vite, designed to provide a faster, more modern testing experience for JavaScript and TypeScript projects. It offers native ESM support, out-of-the-box TypeScript and JSX support, and maintains compatibility with Jest's API while delivering superior performance through parallel execution and smart caching.
Key advantages include:
- Near-instant hot module replacement (HMR) for test files
- Compatible with Vite's configuration and plugins
- Built-in code coverage support
- Watch mode that's significantly faster than Jest
- First-class TypeScript support without additional setup